I own a Gen 1 Raptor and a Jeep JL Rubicon, and while the new JL Jeeps are leaps and bounds ahead of the older models, it's no comparison to my Raptor!
The biggest things that make the Raptor better- Ride quality, comfort, engine power, and more of a "king of the road" feel.
The Wrangler offers a nice sized, easy to park, good gas mileage, and a very versatile and fun package to drive along with so many fun options (top off, doors off, and so many cool fun things to do with it). The factory Alpine stereo is also one of the best factory radios I've ever heard.
To all those comparing the old jeeps (JK and older) to the new one, there is no real comparison besides the fact they look similar. I was a big Wrangler fan for so many years but never bought one because they were horrid daily drivers. Jeep has solved This with the 2018+ JL Wranglers for sure. Night and day.
In all seriousness, I think if you are interested in the Gladiator you're better off just getting a Wrangler unless you absolutely, 100% need the bed.. but I think it would be a HUGE step back from a Raptor and not worth it for the price.